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mtx  (MedChemExpress)
94
MedChemExpress mtx
a. Simplified metabolism of 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG). Asterisk denotes ability of 6-TGMP to be transformed into 6-meTGMP that may inhibit de novo purine synthesis. b. FACS-based growth competition comparing ΔNUDT5 and mutants to wildtype HEK293T cells treated with 6-TG. Data are individual values from n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments. c. Chemical structures of adenosine-5’-monophosphate (AMP) and 6-methylthioinosine-5’-monophosphate (6-meTIMP). d. Left – alignment of molecular glue interface of AMP and 6-meTIMP showing cryo-EM density for the nucleotides. Right – rearrangement of PPAT interface residues in the 6-meTIMP structure (dark sidechains) compared to the AMP-bounds structure (light sidechains) e. Hydrophobic pocket of PPAT engaged by 6-meTIMP. f. 2D-ligand diagram of the 6-meTIMP molecular glue interface. g. PPAT activity assay measuring nucleotide-dependent inhibition in the presence of NUDT5 with 0.25 mM PRPP. Data points are the mean and error bars are SEM from n=3 independent experiments. h. Left – Western blot of endogenous NUDT5 3xFLAG immunoprecipitations following 16-hour treatment <t>with</t> <t>methotrexate</t> (2 µM), 6-MP (50 µM), and <t>MTX</t> + 6-MP. Right – Quantification of PPAT immunoprecipitation normalized to NUDT5 3xFLAG bait and compared to a DMSO-treated control condition. Data are individual values from n=3 independent biological replicate experiments and error bars are SEM. i. Fractional enrichment of AMP (M+2) and GMP (M+3) isotopologs in [ 15 N-amide]-glutamine labeling experiments conducted in the presence of 6-MP. Data points are individual values of n=6 biological replicates from two independent experiments and error bars are SEM. Statistical comparisons were performed using Welch’s two-tailed t-test with Bonferroni correction between wildtype and each mutant. *** denotes a Bonferroni adjusted p-value < 0.001 and ** is p-value < 0.01. j. FACS-based growth competition experiment comparing growth of ΔNUDT5 and endogenous L217A/K218A (LKAA) NUDT5 mutants to wildtype HEK293T treated with 6-MP and 6-TG. Data show n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments.
Mtx, supplied by MedChemExpress, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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xsens mtx inertial measurement  (Xsens North America Inc)
86
Xsens North America Inc xsens mtx inertial measurement
a. Simplified metabolism of 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG). Asterisk denotes ability of 6-TGMP to be transformed into 6-meTGMP that may inhibit de novo purine synthesis. b. FACS-based growth competition comparing ΔNUDT5 and mutants to wildtype HEK293T cells treated with 6-TG. Data are individual values from n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments. c. Chemical structures of adenosine-5’-monophosphate (AMP) and 6-methylthioinosine-5’-monophosphate (6-meTIMP). d. Left – alignment of molecular glue interface of AMP and 6-meTIMP showing cryo-EM density for the nucleotides. Right – rearrangement of PPAT interface residues in the 6-meTIMP structure (dark sidechains) compared to the AMP-bounds structure (light sidechains) e. Hydrophobic pocket of PPAT engaged by 6-meTIMP. f. 2D-ligand diagram of the 6-meTIMP molecular glue interface. g. PPAT activity assay measuring nucleotide-dependent inhibition in the presence of NUDT5 with 0.25 mM PRPP. Data points are the mean and error bars are SEM from n=3 independent experiments. h. Left – Western blot of endogenous NUDT5 3xFLAG immunoprecipitations following 16-hour treatment <t>with</t> <t>methotrexate</t> (2 µM), 6-MP (50 µM), and <t>MTX</t> + 6-MP. Right – Quantification of PPAT immunoprecipitation normalized to NUDT5 3xFLAG bait and compared to a DMSO-treated control condition. Data are individual values from n=3 independent biological replicate experiments and error bars are SEM. i. Fractional enrichment of AMP (M+2) and GMP (M+3) isotopologs in [ 15 N-amide]-glutamine labeling experiments conducted in the presence of 6-MP. Data points are individual values of n=6 biological replicates from two independent experiments and error bars are SEM. Statistical comparisons were performed using Welch’s two-tailed t-test with Bonferroni correction between wildtype and each mutant. *** denotes a Bonferroni adjusted p-value < 0.001 and ** is p-value < 0.01. j. FACS-based growth competition experiment comparing growth of ΔNUDT5 and endogenous L217A/K218A (LKAA) NUDT5 mutants to wildtype HEK293T treated with 6-MP and 6-TG. Data show n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments.
Xsens Mtx Inertial Measurement, supplied by Xsens North America Inc, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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mtx  (Hikma Inc)
86
Hikma Inc mtx
a. Simplified metabolism of 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG). Asterisk denotes ability of 6-TGMP to be transformed into 6-meTGMP that may inhibit de novo purine synthesis. b. FACS-based growth competition comparing ΔNUDT5 and mutants to wildtype HEK293T cells treated with 6-TG. Data are individual values from n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments. c. Chemical structures of adenosine-5’-monophosphate (AMP) and 6-methylthioinosine-5’-monophosphate (6-meTIMP). d. Left – alignment of molecular glue interface of AMP and 6-meTIMP showing cryo-EM density for the nucleotides. Right – rearrangement of PPAT interface residues in the 6-meTIMP structure (dark sidechains) compared to the AMP-bounds structure (light sidechains) e. Hydrophobic pocket of PPAT engaged by 6-meTIMP. f. 2D-ligand diagram of the 6-meTIMP molecular glue interface. g. PPAT activity assay measuring nucleotide-dependent inhibition in the presence of NUDT5 with 0.25 mM PRPP. Data points are the mean and error bars are SEM from n=3 independent experiments. h. Left – Western blot of endogenous NUDT5 3xFLAG immunoprecipitations following 16-hour treatment <t>with</t> <t>methotrexate</t> (2 µM), 6-MP (50 µM), and <t>MTX</t> + 6-MP. Right – Quantification of PPAT immunoprecipitation normalized to NUDT5 3xFLAG bait and compared to a DMSO-treated control condition. Data are individual values from n=3 independent biological replicate experiments and error bars are SEM. i. Fractional enrichment of AMP (M+2) and GMP (M+3) isotopologs in [ 15 N-amide]-glutamine labeling experiments conducted in the presence of 6-MP. Data points are individual values of n=6 biological replicates from two independent experiments and error bars are SEM. Statistical comparisons were performed using Welch’s two-tailed t-test with Bonferroni correction between wildtype and each mutant. *** denotes a Bonferroni adjusted p-value < 0.001 and ** is p-value < 0.01. j. FACS-based growth competition experiment comparing growth of ΔNUDT5 and endogenous L217A/K218A (LKAA) NUDT5 mutants to wildtype HEK293T treated with 6-MP and 6-TG. Data show n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments.
Mtx, supplied by Hikma Inc, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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mtx integrated inertial measurement  (Xsens North America Inc)
86
Xsens North America Inc mtx integrated inertial measurement
a. Simplified metabolism of 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG). Asterisk denotes ability of 6-TGMP to be transformed into 6-meTGMP that may inhibit de novo purine synthesis. b. FACS-based growth competition comparing ΔNUDT5 and mutants to wildtype HEK293T cells treated with 6-TG. Data are individual values from n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments. c. Chemical structures of adenosine-5’-monophosphate (AMP) and 6-methylthioinosine-5’-monophosphate (6-meTIMP). d. Left – alignment of molecular glue interface of AMP and 6-meTIMP showing cryo-EM density for the nucleotides. Right – rearrangement of PPAT interface residues in the 6-meTIMP structure (dark sidechains) compared to the AMP-bounds structure (light sidechains) e. Hydrophobic pocket of PPAT engaged by 6-meTIMP. f. 2D-ligand diagram of the 6-meTIMP molecular glue interface. g. PPAT activity assay measuring nucleotide-dependent inhibition in the presence of NUDT5 with 0.25 mM PRPP. Data points are the mean and error bars are SEM from n=3 independent experiments. h. Left – Western blot of endogenous NUDT5 3xFLAG immunoprecipitations following 16-hour treatment <t>with</t> <t>methotrexate</t> (2 µM), 6-MP (50 µM), and <t>MTX</t> + 6-MP. Right – Quantification of PPAT immunoprecipitation normalized to NUDT5 3xFLAG bait and compared to a DMSO-treated control condition. Data are individual values from n=3 independent biological replicate experiments and error bars are SEM. i. Fractional enrichment of AMP (M+2) and GMP (M+3) isotopologs in [ 15 N-amide]-glutamine labeling experiments conducted in the presence of 6-MP. Data points are individual values of n=6 biological replicates from two independent experiments and error bars are SEM. Statistical comparisons were performed using Welch’s two-tailed t-test with Bonferroni correction between wildtype and each mutant. *** denotes a Bonferroni adjusted p-value < 0.001 and ** is p-value < 0.01. j. FACS-based growth competition experiment comparing growth of ΔNUDT5 and endogenous L217A/K218A (LKAA) NUDT5 mutants to wildtype HEK293T treated with 6-MP and 6-TG. Data show n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments.
Mtx Integrated Inertial Measurement, supplied by Xsens North America Inc, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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rmc mtx ultramicrotome  (Boeckeler Instruments Inc)
86
Boeckeler Instruments Inc rmc mtx ultramicrotome
a. Simplified metabolism of 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG). Asterisk denotes ability of 6-TGMP to be transformed into 6-meTGMP that may inhibit de novo purine synthesis. b. FACS-based growth competition comparing ΔNUDT5 and mutants to wildtype HEK293T cells treated with 6-TG. Data are individual values from n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments. c. Chemical structures of adenosine-5’-monophosphate (AMP) and 6-methylthioinosine-5’-monophosphate (6-meTIMP). d. Left – alignment of molecular glue interface of AMP and 6-meTIMP showing cryo-EM density for the nucleotides. Right – rearrangement of PPAT interface residues in the 6-meTIMP structure (dark sidechains) compared to the AMP-bounds structure (light sidechains) e. Hydrophobic pocket of PPAT engaged by 6-meTIMP. f. 2D-ligand diagram of the 6-meTIMP molecular glue interface. g. PPAT activity assay measuring nucleotide-dependent inhibition in the presence of NUDT5 with 0.25 mM PRPP. Data points are the mean and error bars are SEM from n=3 independent experiments. h. Left – Western blot of endogenous NUDT5 3xFLAG immunoprecipitations following 16-hour treatment <t>with</t> <t>methotrexate</t> (2 µM), 6-MP (50 µM), and <t>MTX</t> + 6-MP. Right – Quantification of PPAT immunoprecipitation normalized to NUDT5 3xFLAG bait and compared to a DMSO-treated control condition. Data are individual values from n=3 independent biological replicate experiments and error bars are SEM. i. Fractional enrichment of AMP (M+2) and GMP (M+3) isotopologs in [ 15 N-amide]-glutamine labeling experiments conducted in the presence of 6-MP. Data points are individual values of n=6 biological replicates from two independent experiments and error bars are SEM. Statistical comparisons were performed using Welch’s two-tailed t-test with Bonferroni correction between wildtype and each mutant. *** denotes a Bonferroni adjusted p-value < 0.001 and ** is p-value < 0.01. j. FACS-based growth competition experiment comparing growth of ΔNUDT5 and endogenous L217A/K218A (LKAA) NUDT5 mutants to wildtype HEK293T treated with 6-MP and 6-TG. Data show n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments.
Rmc Mtx Ultramicrotome, supplied by Boeckeler Instruments Inc, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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xsens mtx  (Xsens North America Inc)
86
Xsens North America Inc xsens mtx
a. Simplified metabolism of 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG). Asterisk denotes ability of 6-TGMP to be transformed into 6-meTGMP that may inhibit de novo purine synthesis. b. FACS-based growth competition comparing ΔNUDT5 and mutants to wildtype HEK293T cells treated with 6-TG. Data are individual values from n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments. c. Chemical structures of adenosine-5’-monophosphate (AMP) and 6-methylthioinosine-5’-monophosphate (6-meTIMP). d. Left – alignment of molecular glue interface of AMP and 6-meTIMP showing cryo-EM density for the nucleotides. Right – rearrangement of PPAT interface residues in the 6-meTIMP structure (dark sidechains) compared to the AMP-bounds structure (light sidechains) e. Hydrophobic pocket of PPAT engaged by 6-meTIMP. f. 2D-ligand diagram of the 6-meTIMP molecular glue interface. g. PPAT activity assay measuring nucleotide-dependent inhibition in the presence of NUDT5 with 0.25 mM PRPP. Data points are the mean and error bars are SEM from n=3 independent experiments. h. Left – Western blot of endogenous NUDT5 3xFLAG immunoprecipitations following 16-hour treatment <t>with</t> <t>methotrexate</t> (2 µM), 6-MP (50 µM), and <t>MTX</t> + 6-MP. Right – Quantification of PPAT immunoprecipitation normalized to NUDT5 3xFLAG bait and compared to a DMSO-treated control condition. Data are individual values from n=3 independent biological replicate experiments and error bars are SEM. i. Fractional enrichment of AMP (M+2) and GMP (M+3) isotopologs in [ 15 N-amide]-glutamine labeling experiments conducted in the presence of 6-MP. Data points are individual values of n=6 biological replicates from two independent experiments and error bars are SEM. Statistical comparisons were performed using Welch’s two-tailed t-test with Bonferroni correction between wildtype and each mutant. *** denotes a Bonferroni adjusted p-value < 0.001 and ** is p-value < 0.01. j. FACS-based growth competition experiment comparing growth of ΔNUDT5 and endogenous L217A/K218A (LKAA) NUDT5 mutants to wildtype HEK293T treated with 6-MP and 6-TG. Data show n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments.
Xsens Mtx, supplied by Xsens North America Inc, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/mtx/pmc13156998-148-1-1?v=Xsens+North+America+Inc
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xsens mtx sensors  (Xsens North America Inc)
86
Xsens North America Inc xsens mtx sensors
a. Simplified metabolism of 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG). Asterisk denotes ability of 6-TGMP to be transformed into 6-meTGMP that may inhibit de novo purine synthesis. b. FACS-based growth competition comparing ΔNUDT5 and mutants to wildtype HEK293T cells treated with 6-TG. Data are individual values from n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments. c. Chemical structures of adenosine-5’-monophosphate (AMP) and 6-methylthioinosine-5’-monophosphate (6-meTIMP). d. Left – alignment of molecular glue interface of AMP and 6-meTIMP showing cryo-EM density for the nucleotides. Right – rearrangement of PPAT interface residues in the 6-meTIMP structure (dark sidechains) compared to the AMP-bounds structure (light sidechains) e. Hydrophobic pocket of PPAT engaged by 6-meTIMP. f. 2D-ligand diagram of the 6-meTIMP molecular glue interface. g. PPAT activity assay measuring nucleotide-dependent inhibition in the presence of NUDT5 with 0.25 mM PRPP. Data points are the mean and error bars are SEM from n=3 independent experiments. h. Left – Western blot of endogenous NUDT5 3xFLAG immunoprecipitations following 16-hour treatment <t>with</t> <t>methotrexate</t> (2 µM), 6-MP (50 µM), and <t>MTX</t> + 6-MP. Right – Quantification of PPAT immunoprecipitation normalized to NUDT5 3xFLAG bait and compared to a DMSO-treated control condition. Data are individual values from n=3 independent biological replicate experiments and error bars are SEM. i. Fractional enrichment of AMP (M+2) and GMP (M+3) isotopologs in [ 15 N-amide]-glutamine labeling experiments conducted in the presence of 6-MP. Data points are individual values of n=6 biological replicates from two independent experiments and error bars are SEM. Statistical comparisons were performed using Welch’s two-tailed t-test with Bonferroni correction between wildtype and each mutant. *** denotes a Bonferroni adjusted p-value < 0.001 and ** is p-value < 0.01. j. FACS-based growth competition experiment comparing growth of ΔNUDT5 and endogenous L217A/K218A (LKAA) NUDT5 mutants to wildtype HEK293T treated with 6-MP and 6-TG. Data show n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments.
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mtx  (Mylan Lab)
86
Mylan Lab mtx
a. Simplified metabolism of 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG). Asterisk denotes ability of 6-TGMP to be transformed into 6-meTGMP that may inhibit de novo purine synthesis. b. FACS-based growth competition comparing ΔNUDT5 and mutants to wildtype HEK293T cells treated with 6-TG. Data are individual values from n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments. c. Chemical structures of adenosine-5’-monophosphate (AMP) and 6-methylthioinosine-5’-monophosphate (6-meTIMP). d. Left – alignment of molecular glue interface of AMP and 6-meTIMP showing cryo-EM density for the nucleotides. Right – rearrangement of PPAT interface residues in the 6-meTIMP structure (dark sidechains) compared to the AMP-bounds structure (light sidechains) e. Hydrophobic pocket of PPAT engaged by 6-meTIMP. f. 2D-ligand diagram of the 6-meTIMP molecular glue interface. g. PPAT activity assay measuring nucleotide-dependent inhibition in the presence of NUDT5 with 0.25 mM PRPP. Data points are the mean and error bars are SEM from n=3 independent experiments. h. Left – Western blot of endogenous NUDT5 3xFLAG immunoprecipitations following 16-hour treatment <t>with</t> <t>methotrexate</t> (2 µM), 6-MP (50 µM), and <t>MTX</t> + 6-MP. Right – Quantification of PPAT immunoprecipitation normalized to NUDT5 3xFLAG bait and compared to a DMSO-treated control condition. Data are individual values from n=3 independent biological replicate experiments and error bars are SEM. i. Fractional enrichment of AMP (M+2) and GMP (M+3) isotopologs in [ 15 N-amide]-glutamine labeling experiments conducted in the presence of 6-MP. Data points are individual values of n=6 biological replicates from two independent experiments and error bars are SEM. Statistical comparisons were performed using Welch’s two-tailed t-test with Bonferroni correction between wildtype and each mutant. *** denotes a Bonferroni adjusted p-value < 0.001 and ** is p-value < 0.01. j. FACS-based growth competition experiment comparing growth of ΔNUDT5 and endogenous L217A/K218A (LKAA) NUDT5 mutants to wildtype HEK293T treated with 6-MP and 6-TG. Data show n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments.
Mtx, supplied by Mylan Lab, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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a. Simplified metabolism of 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG). Asterisk denotes ability of 6-TGMP to be transformed into 6-meTGMP that may inhibit de novo purine synthesis. b. FACS-based growth competition comparing ΔNUDT5 and mutants to wildtype HEK293T cells treated with 6-TG. Data are individual values from n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments. c. Chemical structures of adenosine-5’-monophosphate (AMP) and 6-methylthioinosine-5’-monophosphate (6-meTIMP). d. Left – alignment of molecular glue interface of AMP and 6-meTIMP showing cryo-EM density for the nucleotides. Right – rearrangement of PPAT interface residues in the 6-meTIMP structure (dark sidechains) compared to the AMP-bounds structure (light sidechains) e. Hydrophobic pocket of PPAT engaged by 6-meTIMP. f. 2D-ligand diagram of the 6-meTIMP molecular glue interface. g. PPAT activity assay measuring nucleotide-dependent inhibition in the presence of NUDT5 with 0.25 mM PRPP. Data points are the mean and error bars are SEM from n=3 independent experiments. h. Left – Western blot of endogenous NUDT5 3xFLAG immunoprecipitations following 16-hour treatment with methotrexate (2 µM), 6-MP (50 µM), and MTX + 6-MP. Right – Quantification of PPAT immunoprecipitation normalized to NUDT5 3xFLAG bait and compared to a DMSO-treated control condition. Data are individual values from n=3 independent biological replicate experiments and error bars are SEM. i. Fractional enrichment of AMP (M+2) and GMP (M+3) isotopologs in [ 15 N-amide]-glutamine labeling experiments conducted in the presence of 6-MP. Data points are individual values of n=6 biological replicates from two independent experiments and error bars are SEM. Statistical comparisons were performed using Welch’s two-tailed t-test with Bonferroni correction between wildtype and each mutant. *** denotes a Bonferroni adjusted p-value < 0.001 and ** is p-value < 0.01. j. FACS-based growth competition experiment comparing growth of ΔNUDT5 and endogenous L217A/K218A (LKAA) NUDT5 mutants to wildtype HEK293T treated with 6-MP and 6-TG. Data show n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments.

Journal: bioRxiv

Article Title: Metabolic glues as a means of purine sensing and chemotherapeutic response

doi: 10.64898/2026.05.05.723063

Figure Lengend Snippet: a. Simplified metabolism of 6-mercaptopurine (6-MP) and 6-thioguanine (6-TG). Asterisk denotes ability of 6-TGMP to be transformed into 6-meTGMP that may inhibit de novo purine synthesis. b. FACS-based growth competition comparing ΔNUDT5 and mutants to wildtype HEK293T cells treated with 6-TG. Data are individual values from n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments. c. Chemical structures of adenosine-5’-monophosphate (AMP) and 6-methylthioinosine-5’-monophosphate (6-meTIMP). d. Left – alignment of molecular glue interface of AMP and 6-meTIMP showing cryo-EM density for the nucleotides. Right – rearrangement of PPAT interface residues in the 6-meTIMP structure (dark sidechains) compared to the AMP-bounds structure (light sidechains) e. Hydrophobic pocket of PPAT engaged by 6-meTIMP. f. 2D-ligand diagram of the 6-meTIMP molecular glue interface. g. PPAT activity assay measuring nucleotide-dependent inhibition in the presence of NUDT5 with 0.25 mM PRPP. Data points are the mean and error bars are SEM from n=3 independent experiments. h. Left – Western blot of endogenous NUDT5 3xFLAG immunoprecipitations following 16-hour treatment with methotrexate (2 µM), 6-MP (50 µM), and MTX + 6-MP. Right – Quantification of PPAT immunoprecipitation normalized to NUDT5 3xFLAG bait and compared to a DMSO-treated control condition. Data are individual values from n=3 independent biological replicate experiments and error bars are SEM. i. Fractional enrichment of AMP (M+2) and GMP (M+3) isotopologs in [ 15 N-amide]-glutamine labeling experiments conducted in the presence of 6-MP. Data points are individual values of n=6 biological replicates from two independent experiments and error bars are SEM. Statistical comparisons were performed using Welch’s two-tailed t-test with Bonferroni correction between wildtype and each mutant. *** denotes a Bonferroni adjusted p-value < 0.001 and ** is p-value < 0.01. j. FACS-based growth competition experiment comparing growth of ΔNUDT5 and endogenous L217A/K218A (LKAA) NUDT5 mutants to wildtype HEK293T treated with 6-MP and 6-TG. Data show n=3 biological replicates from a representative experiment. Similar results were obtained in two independent experiments.

Article Snippet: The following drugs and chemicals were used in this study at amounts specified in figures and legends: Pevonedistat; MLN4924 (MedChemExpress, HY-70062), methotrexate; MTX (MedChemExpress, HY-14519), lometrexol; LMX (MedChemExpress, HY-14521), brequinar (MedChemExpress, HY-108325) , rapamycin (Adooq Biosciences, A10782), 5-Phospho-D-ribose 1-diphosphate; PRPP (Sigma-Aldrich, P8296) , L-glutamine (Sigma-Aldrich, G8540); adenosine-5’-monophosphate; AMP (Sigma-Aldrich 01930), inosine-5’-monophosphate; IMP (MedChemExpress, HY-W010759), guanosine-5’-monophosphate; GMP (Sigma-Aldrich, G8377), AICA-ribonucleotide (Cayman Chemicals 33907), adenine (Thermo Scientific, A17622.14), hypoxanthine (MedChemExpress, HY-N0091), 6-thioguanine; 6-TG (Thermo Scientific, B21280.03), 6-mercaptopurine; 6-MP (Adooq Biosciences, A15898), 6-thioinosine-5’-monophosphate; 6-TIMP (Jena Biosciences, NU-1148), 6-methylthioinosine-5’-monophosphate; 6-meTIMP (Jena Biosciences, NU-1226), 6-methylthioguanosine-5’-monophosphate; 6-meTGMP (Jena Biosciences, NU-1128), 6-benzylthioinosine-5’-monophosphate; 6-benzylTIMP (WuXi, custom synthesis), 6-ethylthioinosine-5’-monophosphate 6-etTIMP (WuXi, custom synthesis), 6-ethylmercaptopurine riboside; 6-EMPR (WuXi, custom synthesis).

Techniques: Transformation Assay, Cryo-EM Sample Prep, Activity Assay, Inhibition, Western Blot, Immunoprecipitation, Control, Labeling, Two Tailed Test, Mutagenesis

a. Example cryo-EM density of the PPAT-NUDT5 6-meTIMP molecular glue interface with model fit. b,c. PPAT activity assay measuring inhibitory effects of 6-meTIMP in the presence and absence of wildtype NUDT5 and indicated mutants and c. compared to AMP only. d. Left – Representative Western blot of immunoprecipitations from endogenous NUDT5 3xFLAG HEK293T cells treated with indicated drugs for 16 hours: methotrexate (MTX; 2 µM), lometrexol (LMX; 10 µM), 6-mercaptopurine (6-MP; 50 µM), MLN4924 (1 µM), brequinar (2 µM), and rapamycin (1 µM). Right – quantification of PPAT immunoprecipitation relative to NUDT5 3xFLAG bait and normalized to a DMSO-treated control condition. Data are individual values from n=3 biological replicates from independent experiments and error bars are SEM. e. Western blot of immunoprecipitations from endogenous NUDT5 3xFLAG HEK293T cells treated with MTX (2 µM) for the indicated amounts of time. Similar results were obtained in two independent experiments. f. Western blot of endogenous PPAT 3xFLAG immunoprecipitations following 16-hour treatment with MTX (2 µM), 6-MP (50 µM), and MTX + 6-MP g. Time-resolved microscopy (incucyte) growth assays of wildtype and mutant HEK293T cells treated with the indicated drugs. Data are the mean and error bars are SEM of n=6 biological replicates. h. Levels of intracellular 6-TIMP and 6-meTIMP metabolites following 16-hour treatment with 6-MP (20 µM). Data are individual values and error bars are SEM from n=3 biological replicates. i. PPAT activity assay measuring inhibitory effects of 6-meTGMP in the presence and absence of wildtype NUDT5 and indicated mutants. Activity data shown in panels b, c and i are the mean and error bars are SEM of n=3 independent experiments.

Journal: bioRxiv

Article Title: Metabolic glues as a means of purine sensing and chemotherapeutic response

doi: 10.64898/2026.05.05.723063

Figure Lengend Snippet: a. Example cryo-EM density of the PPAT-NUDT5 6-meTIMP molecular glue interface with model fit. b,c. PPAT activity assay measuring inhibitory effects of 6-meTIMP in the presence and absence of wildtype NUDT5 and indicated mutants and c. compared to AMP only. d. Left – Representative Western blot of immunoprecipitations from endogenous NUDT5 3xFLAG HEK293T cells treated with indicated drugs for 16 hours: methotrexate (MTX; 2 µM), lometrexol (LMX; 10 µM), 6-mercaptopurine (6-MP; 50 µM), MLN4924 (1 µM), brequinar (2 µM), and rapamycin (1 µM). Right – quantification of PPAT immunoprecipitation relative to NUDT5 3xFLAG bait and normalized to a DMSO-treated control condition. Data are individual values from n=3 biological replicates from independent experiments and error bars are SEM. e. Western blot of immunoprecipitations from endogenous NUDT5 3xFLAG HEK293T cells treated with MTX (2 µM) for the indicated amounts of time. Similar results were obtained in two independent experiments. f. Western blot of endogenous PPAT 3xFLAG immunoprecipitations following 16-hour treatment with MTX (2 µM), 6-MP (50 µM), and MTX + 6-MP g. Time-resolved microscopy (incucyte) growth assays of wildtype and mutant HEK293T cells treated with the indicated drugs. Data are the mean and error bars are SEM of n=6 biological replicates. h. Levels of intracellular 6-TIMP and 6-meTIMP metabolites following 16-hour treatment with 6-MP (20 µM). Data are individual values and error bars are SEM from n=3 biological replicates. i. PPAT activity assay measuring inhibitory effects of 6-meTGMP in the presence and absence of wildtype NUDT5 and indicated mutants. Activity data shown in panels b, c and i are the mean and error bars are SEM of n=3 independent experiments.

Article Snippet: The following drugs and chemicals were used in this study at amounts specified in figures and legends: Pevonedistat; MLN4924 (MedChemExpress, HY-70062), methotrexate; MTX (MedChemExpress, HY-14519), lometrexol; LMX (MedChemExpress, HY-14521), brequinar (MedChemExpress, HY-108325) , rapamycin (Adooq Biosciences, A10782), 5-Phospho-D-ribose 1-diphosphate; PRPP (Sigma-Aldrich, P8296) , L-glutamine (Sigma-Aldrich, G8540); adenosine-5’-monophosphate; AMP (Sigma-Aldrich 01930), inosine-5’-monophosphate; IMP (MedChemExpress, HY-W010759), guanosine-5’-monophosphate; GMP (Sigma-Aldrich, G8377), AICA-ribonucleotide (Cayman Chemicals 33907), adenine (Thermo Scientific, A17622.14), hypoxanthine (MedChemExpress, HY-N0091), 6-thioguanine; 6-TG (Thermo Scientific, B21280.03), 6-mercaptopurine; 6-MP (Adooq Biosciences, A15898), 6-thioinosine-5’-monophosphate; 6-TIMP (Jena Biosciences, NU-1148), 6-methylthioinosine-5’-monophosphate; 6-meTIMP (Jena Biosciences, NU-1226), 6-methylthioguanosine-5’-monophosphate; 6-meTGMP (Jena Biosciences, NU-1128), 6-benzylthioinosine-5’-monophosphate; 6-benzylTIMP (WuXi, custom synthesis), 6-ethylthioinosine-5’-monophosphate 6-etTIMP (WuXi, custom synthesis), 6-ethylmercaptopurine riboside; 6-EMPR (WuXi, custom synthesis).

Techniques: Cryo-EM Sample Prep, Activity Assay, Western Blot, Immunoprecipitation, Control, Microscopy, Mutagenesis